To be fair, macroeconomics can hardly be called science, though. It is incredibly hard to falsify a lot of the theories given the lack of possibilities for experimentation. It is far closer to philosophy than to any of the even remotely hard sciences.

Nothing to do with ideology, but with the nature of the field. Take epidemiological research in the areas of food and medicine: incredibly hard and expensive to get right and even then with often tenuous results. Now try doing that with ridiculously heterogeneous nations influenced by potentially almost everything on the planet.

It's a small miracle that economists manage to get some useful insights out of the data, but we should definitely be aware of how weakly most of them are supported (don't start talking about "error bars" with economists).

An argument of the last couple of decades is that videogames have built incredible labs for macroeconomic experimentation. So far mostly what we learn are failure cases (mudflation, being such a big learning from videogames that the term itself is named after a type of them), but we are learning things (some of them exploitative, but that's a different ethical question).